How can I check internet connection in Android Q?

Question

Before Android Q all you had to do is use the NetworkUtils class. But this class was deprecated in API 29. I've been searching for an alternative, and I couldn't seem to find one.

So, how can I check the internet connection in Android Q?

Answer 1

    @IntRange(from = 0, to = 4)
public static int getConnectionType(Context context) {
    ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
    if (cm == null) {
        return 0; // No connection
    }

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
        NetworkCapabilities capabilities = cm.getNetworkCapabilities(cm.getActiveNetwork());
        if (capabilities == null) {
            return 0; // No connection
        }
        if (capabilities.hasTransport(NetworkCapabilities.TRANSPORT_WIFI)) {
            return 2; // WiFi
        } else if (capabilities.hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR)) {
            return 1; // Cellular data
        } else if (capabilities.hasTransport(NetworkCapabilities.TRANSPORT_VPN)) {
            return 3; // VPN
        } else {
            return 4; // Other network types like Ethernet
        }
    } else {
        NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
        if (activeNetwork == null || !activeNetwork.isConnected()) {
            return 0; // No connection
        }
        switch (activeNetwork.getType()) {
            case ConnectivityManager.TYPE_WIFI:
                return 2; // WiFi
            case ConnectivityManager.TYPE_MOBILE:
                return 1; // Cellular data
            case ConnectivityManager.TYPE_VPN:
                return 3; // VPN
            default:
                return 4; // Other network types like Ethernet
        }
    }
}

Permissions in AndroidManifest.xml

<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.INTERNET" />